3 Thunders Review Scores

Game title: 3 Thunders

Game description: 3 Thunders is a 3 reel, 5 payline slot that was developed by Endorphina. This slot has an RTP of 96%, is packed with bonus features and contains some glorious graphics and animations. You can win huge prizes with stacked wilds as well as a possible 5,000x the stake wins.

Play 3 Thunders

  • Graphics & Sound
  • Gameplay
  • Features & Bonuses
  • Free Spins
  • Thrill Factor


  • Great Graphics
  • Free Spins Bonus Round
  • 5,000x the Stake Payouts


In a world where the online slots keep innovating, Endorphina dares to take the players back to basics by combining the classic layout of an old-school slot with advanced graphics and rewarding features. Some things never get too old or boring, take for example classic slot machines. The joyful and colorful imagery of fruits, bells and stars is something punters simply can’t get enough of and is the main reason why we are here today, checking out the 3 Thunders online slot. Nonetheless, as classic as it appears to be, this online edition from Endorphina hides a round of Free Spins where the Lucky 7 Symbol becomes Wild and lands Stacked! Erupting skies and lighting explosions will flash with some loud wins as Jupiter, Zeus, and Thor join forces to create the biggest storm you’ve seen. Sound the weather alarms because this storm is starting here for fun.

Welcome to 3 Thunders
Welcome to 3 Thunders

3 Thunders online slot features 3 reels, 3 rows and 5 pay lines. The winning combinations require 3 or more matching symbols on adjacent reels, starting from the leftmost reel onwards. The game’s best odds sit at 96,04%, which is just a tad bit higher than the industry average of 96%. The reels are quite simple and semi transparent, circled with a neon lights border, while the background of this online product is a plain blue mat with a few dark blue variations in the middle. The audio department of Endorphina content developer implemented a classic retro-vibe soundtrack in the background, fulfilling the whole atmosphere of the game. Lucky 7, Bells, Watermelons, Lemons, Plums and Cherries make up for the title’s pay table. Keep reading to learn everything you need to know about the gameplay and the bonus features of this online slot title.

3 Thunders Gameplay

Before starting 3 Thunders there are certain things you can do to set it up under your preferences. You can see the betting amount right below the reels. You can set it from 5 to 50.00 coins per spin. However, the player can also control the coin size. It can be set at 0.05, 0.1, 0.2 or 0.5. Conversely, the maximum bet with a 0.5 coin size is 250.00 coins per spin. The slot has 5 paylines that can be controlled by the Lines button in the bottom left corner. This means that players can set their gameplay anywhere from 1 to 5 paylines. Keep in mind that this slot can be played with bitcoin. However, you can play with regular FIAT currency as well.


Hitting the Spin button will start the 3 Thunders online slot. The button is on the bottom right side, right below the reels. Right next to it, you can see the Auto button which is used to spin the reels automatically. This is a feature often added to slots by game developers. Additionally, this slot title has a turbo button as well. Clicking on it will make the reels spin faster, creating a faster gameplay. The button to control the background sound is on the top-right side of the reels. Right next to it, there is an “i” button. Clicking on it will reveal the gameplay, paylines, and all the bonuses. However, the game options are set diagonally from the background sounds button. You can find them in the bottom left corner.


Designed with a 3-row, 3-reel setup holding five fixed paylines, 3 Thunders allows the players to wager amounts from as low as 0.01 p/c and up to £/$/€ 500 per spin. The list of symbols includes 7s (Sevens) serving as top-paying logos and capable of paying 100x for a complete line. Additionally, the list completes with Bells, Watermelons, Lemons, Plums, Cherries and the Lightning Scatter. 3 Thunders has a 96.04% default RTP carrying medium-high volatility for win frequencies regarding the return to player stats; Betting size can be modified by selecting the coin value denomination. Furthermore, the player can experience a fast-paced session when triggering the “Turbo” spins button. Nevertheless, auto-spins can be performed by selecting the button located next to the Spin icon.

Lucky 7, Bells, Watermelons, Lemons, Plums and Cherries make up for the title’s pay table. The Thunder represents the Scatter Symbol and we’ll be talking about this specific icon furthermore in the following section.

3 Thunders Features and Bonuses

As we said before, there are no icons with special properties in this game, but this doesn’t mean that the 3 Thunders bonus features are missing. There is one main feature which brings the highest payouts of the game as well as stacked wilds. The feature can be considered a bonus game as it changes the regular gameplay and what you get depends on the choices the player makes. On top of that, this fantastic title has a gamble feature as well. Most Endorphina slots come with a gamble feature and we are happy that they continued the trend in this one. Below, we will explain all the bonus features in detail.

Gamble Feature

Like many other casino games, this one also has a Gamble feature. Here, you will get one card shown, and 4 more flipped over face down. You need to choose one of the remaining four cards. If the card you choose is highest than the dealer’s, you win, if the dealer’s card is higher than yours, you will lose and will be taken back to the base game. If the card is the same as the dealer’s you will repeat the round. You can choose to collect your winnings after each high card chosen. In 3 Thunders, you can double your winning up to 10 times. However, once you get it wrong, the round is over and you lose your initial win. Endorphina as a developer often add gamble features to their slots. You can read more about such features on their website.

3 Thunders Gamble Feature
Gamble Feature

Thrill Factor

There is one more feature that the 3 Thunders slot has and we have to mention it. It’s a feature which acts as a bonus round, separate from the regular gameplay which is why we consider it the Thrill factor. It’s a Free Spins feature which is a favorite among slot players. However, this bonus game comes with something extra that players love. We are talking about the stacked wilds that appear and stay during the whole free spins feature. On top of that, the slot comes with something completely unique. It’s a Bonus Pop buy feature which is not expected in a slot like this one. We will explain this in proper detail right below.

Free Spins Feature

Thunder is the Scatter symbol in the game that will trigger Free Spins round with Stacked Wild once you manage to hit 3 Thunders on the same spin. Once triggered, you will get awarded with 20 spins. While the base game has no Wilds, the Lucky 7 will take on that role for the duration of Free Spins. Wild in the game will have the capability to appear stacked on all three reels and depending on where on the reels it lands, you might even get to see the entire reel being fully stacked. However, it is also possible to retrigger the feature and win additional Free Spins during the round.

Free Spins Feature

Feeling impatient? Nothing to worry about as the provider allows usage of the Bonus Pop Buy Feature. By purchasing this feature players skip the base game and enter the bonus round straight away.


3 Thunders, for a classic looking game, comes with simple and sharp graphics and very good looking artwork that will make you crave fruits. In terms of the gameplay, there is one Free Spins feature that will really bring forth the thunders. Overall RTP is set to 96.04% which is in range of industry average. Far as classic 3-reel fruit slots go, this one is really good and definitely worth trying. Endorphina is definitely one of the more interesting iDevelopers in the Industry and we learned quite a bit in our exclusive interview with this company and as far as the 3 Thunders online slot is concerned, it’s a real banger. A true classic experience has been promised and delivered, the title holds above average RTP of 96,04% and boasts a round of Free Spins with Stacked Wild Symbols.

3 Thunders is a suitable game for those who prefer a casual gaming session. While the payout potential isn’t the highest out there, the risk feature proves to be an effective solution to increase the balance and potentially build your way to a cash-out.

Play the 3 Thunders slot on our Bitcoin Casino.

Please, also read our review on Endorphina’s Magnum Opus Slot.